HESC1501 Lecture Notes - Lecture 12: Vascular Resistance, Stroke Volume, Mean Arterial Pressure
30 Jul 2018
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Document Summary
Lecture 12 - 17/04/18 - introduction to exercise physiology and the cardiovascular. The study of the human bodys response to exercise. Systems we focus on: cardiovascular system, respiratory system, endocrine system, skeletal system - metabolism, mitochondria, energy production, fat oxidation/glycolysis, fatigue. Respiratory: breathing tubes - trachea, bronchi, bronchioles, alveoli, lungs. Alveoli - site of gas exchange: capillary network covers the surface of the alveous to facillitate oxygen and carbon dioxide exhange, pulmonary arteriole, pulmonary venule. More oxygen that can get to muscles, the longer you can exercise for. Pulmonary artery - deoxygenated blood (pulmonary = deoxygenated) heading towards the lungs. Functions of the cv system: delivery of o2 nutrients, hormones, removal of co2, metabolic waste, maintenance of temperature, ph, prevention of dehydration and infection, all are important during rest and exercise. Valves open one way blood flow keeps blood moving toward heart.
